Wood-shaping machine.



No. 771,157. PATENTED SEPT. 27, 1904. F. P. KELLEY. WOOD SHAPINGMACHINE.

APPLIOATION FILED 00T.27. 1903. N0 MODEL. 2 SHEETS-SHEET l.

6 s H I 9 1 W\ I PATENTED SEPT. 27, 1904. F. P. KELLEY.

WOOD SHAPING MACHINE.

APPLIOATION FILED 0GT.27. 1903. N0 MODEL.-

2 SHEETS-SHEET 2.

in! :5 w-wa- UNITED STATES Patented September 27, 1904.

PATENT OFFICE.

WOOD-SHAPING MACHINE.

SPECIFICATION forming part of Letters Patent N 0. 771,157, datedSeptember 27, 1904..

Application filed October 27, 1903.

To all whom it may concern:

Be it known that I, FRANK P. KELLEY, a citizen of the United States,residing at South Bend, in the county of St. Joseph and State ofIndiana, have invented certain new and useful Improvements inVVood-Shaping Machines; and I do hereby declare the following to be afull, clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame.

This invention relates to improvements in wood-shaping machines, and hasespecial refe rence to the construction and arrangement of the cutterhead and its correlated parts. In the use of these machines it becomesnecessary from time to time to sharpen the cutters, which necessarilyreduces them in length and width and possibly thickness, so that thedepth or width of the cut made thereby is greater than the sizeoriginally intended, and the work is therefore notuniformly operatedupon; but in the present invention this difliculty is obviated byassociating with the cutter-head a relatively movable guide and gagingmember which may be adjusted to permit the pattern and the work carriedthereby to be brought closer to the cutters.

With this and other objects in view the invention consists in theconstruction, combination, and operative aggroupment of parts, all aswill be more fully described hereinafter, illustrated in theaccompanying drawings, and finallypointed out in the appended claims.

In the drawings, Figure 1 is a plan view of the cutter-head and aportion of the bed-plate of a machine embodying my invention. Fig. 2 isa vertical section on the line w w of Fig. 1 with the cutter-head andits spindle shown in elevation. Fig. 3 is a view similar to Fig. 2,showing a modified form of a guide and gaging member and pattern.

Referring to the drawings, wherein similar reference notationsindicatelike parts appearing in the several illustrations, and reference beinghad thereto, 1 designates the bed-plate or table of a wood-shapingmachine. This bed-plate is formed with an opening in which is mounted asuitable bushing2, having its inner periphery screw-threaded, as at 8,and pro- Serial No. 178,738. (No model.)

vided upon one side with a semicircular groove or recess 4., which isdisposed longitudinally with the axis of the bushing and the purpose ofwhich will appear hereinafter.

Mounted for vertical movement within the opening formed by the bushing 2and engaging the screw-threads thereof is a work-guide and gaging member5 of ring shape, with its outer upper edge beveled, as at 6, at an angleof approximately thirty degrees with the inner face thereof. This ringis so arranged in the bushing as to project more or less above thetable. Within the periphery of this ring 5 are formed semicircularrecesses or grooves 7, any of which may be brought into alinement withthe semicircular groove or recess 4, formed in the contiguous face ofthe bushing 2, and when so alined a circular opening 8 is established,and in this circular opening may be fitted a key or locking-pin 9, whichwill hold the ring member against rotary movement.

Extending through the gaging-ring and disposed transversely to the tableis a vertical spindle 10, having a cutter-head 11 rigidly mountedthereon, the upper end of the spindle being screw-threaded and engagedby a clamping-nut 12. This cutter-head is formed with horizontal slotsin which are mounted suitable bolts or cutters 13, which may be held inplace in any suitable manner. The cutter-head is of such diameter as toentirely close the opening at the top of the ring, while the cutters 13project from the periphery thereof above the ring a suitable distance inorder that the work, which is designated by A in the drawings, may beacted upon by the cutters, and while a straight chisel-edged cutter isshown in the drawings it is to be understood that cutters of differentconfiguration for cutting different shapes upon the edges or in thesides of the work may be employed, and while two cutters are shown inthe drawings only one or several may be used.

In the operation of machines of this character it is customary to employa patternblock to which the article to be shaped is first secured, andin the present instance the pattern-block 14. is formed with a beveledface corresponding to the beveled face 6 of the ring, and these beveledfaces are in intimate contact and serve to guide the work as it isoperated upon. These patterns are of the required size and shape andcannot be altered, and the knives of the revolving head are set so as toconform to the pattern; but when the knives have been sharpened andreduced in size the cut formed thereby is consequently reduced. It isone of the objects of the present invention to provide for thisdiscrepancy which emanates from the constant sharpening of the cuttersby providing the adjustable beveled gaging ring or member 5, andreferring to Fig. 2 of the drawings it will be understood by referenceto the dotted lines, which represent the position of the combinedwork-guide and gagingring when it has been screwed downwardly in theopening, that the pattern 14 and the work may be moved at right anglesto the beveled gaging-ring to bring the beveled faces into contact, andthis movement causes the work to be thrown closer to the cutter-head,and thereby compensates for the reduction in the size of the cutters. Bymeans of the beveled faces a very minute and accurate adjustment may bemade, since a partial rotation, and consequent vertical movement, of thering will permit the pattern and work to be adjusted, and thisadjustment is hardly perceptible, though suificient to take up for theloss occurring by the sharpening of the cutters.

In Fig. 3 the combined workguide and beveled gaging-ring 5 is shownformed with a bevel 15 extending in an opposite direction to that of thebevel 6 in Fig. 2, and while the same result is accomplished by the ringshown in Fig. 3 the inward adjustment of the work and pattern toward thecutter is made by screwing the ring upwardly instead of downwardly, andoutward adjustment, which may be necessary for longer cutters, is madeby screwing the ring downwardly to the position shown in dotted lines inFig. 3. With the form of bevel 15 shown in Fig. 8 the pattern is beveledtoward its upper edge instead of toward its lower edge, as shown in Fig.2.

Having thus described my invention, what I claim, and desire to secureby Letters Patent, is

1. The combination with the bed-plate, of a cutter having its shafttransverse to the bedplate, and a beveled gaging-ring adjustable toproject more or less above the surface of the bed-plate.

2. In a wood-shaping machine, the combination with the bed-plate and arotating cutter, of a beveled gaging-ring mounted in the bed-plate andmovable transversely thereto in a direction parallel with the axis ofthe cutter, and a pattern engaging with said beveled gaging-ring toadjust the work relatively to the cutters.

3. In a wood-shaping machine, the combination with a bed-plate and arotary cutter, of a combined work-guide and gage having a threadedengagement with the bed-plate and provided with a beveled face normallydisposed above the bed-plate and capable of being adjusted to controlthe cut of the cutter.

I. In a wood-shaping machine, the combination with a bed-plate andarotary cutter, of a gaging-ring having a threaded engagement with thebed-plate and provided with abeveled face, a pattern having a beveledface engaging the beveled face of the gaging-ring, whereby the patternwith the work may be adjusted relatively to the cutter by the adjustmentof the gaging-ring.

5. In a wood-shaping machine, the combination with a bed-plate andavertical spindle extending therethrough and having a cutter mountedthereon, of a gaging-ring having a threaded engagement with thebed-plate and capable of being moved vertically thereon and providedwith a beveled face, a pattern having a beveled face to engage thebeveled face of the gaging-ring, and means to lock the gaging-ring inits adjusted position.

6. In a wood-shaping machine, the combination with a bed-plate having anopening and a vertical spindle extending through the opening andcarrying a rotary cutter-head, of a ring mounted in the bed-plate andmovable in a direction parallel with the axis of the spindle and havinga beveled pattern-engaging portion normally disposed above thebed-plate, a pattern having a beveled face to engage the beveled portionof the ring, and means for locking the ring in its adjusted position.

7 In a Wood-shaping machine, a bed-plate having an opening and a recessformed in the edge of said opening, a vertical spindle extending throughsaid opening, a cutter-head carrying cutters mounted on said spindle, aring having a threaded engagement with the bed-plate and provided with abeveled face and also having a plurality of recesses in its periphery, apattern having a beveled face to engage the beveled face of the ring,and a locking-pin to engage the recesses in the ring and bed-plate tohold the former in its adjusted position.

In testimony whereof I affix my signature in presence of two witnesses.

FRANK P. KELLEY.

IVitnesses GEORGE OLTSCH, MAGGIE KNoBLoox.

